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Event name:
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US-24-004
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Country:
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UNITED STATES
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Nature of the harmful event:
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Mass mortalities
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Event directly affected:
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Natural Fish
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Toxicity detected:
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Yes
(Approximate range: Spinning fish first observed in October/November. First samples with Gambierdiscus collected by FWC from 1/18/25)
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Associated syndrome:
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CFP (Ciguatera Fish Poisoning)
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Unexplained toxicity:
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Species implicated in toxin transmission (transvector):
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Report the outcome of a monitoring programme:
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Yes
(Florida Fish and Wildlife Conservation Commission-Fish and Wildlife Research Institute /Florida Department of Agriculture and Consumer Service)
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Event occurred before in this location:
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No
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Individuals to contact:
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HUBBARD, Katherine
,
ZAHARA, Meredith
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Causative organism known:
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Yes
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Causative Species/Genus:
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Gambierdiscus spp.
(12,333 (2/2/24) cells/L)
Cell enumeration of seawater (note, this is typically an epiphytic species, and it is suspected that the bottom was disturbed; once this was addressed, we never observed >4000 cells/L)
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Co-Ocurring Species/Genus:
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Chlorophyll concentration, if known:
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µg/l
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Additional bloom information:
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Event-related bibliography:
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Weather:
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Turbidity (NTU):
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Wind direction:
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Stratified water:
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Oxygen content (nL/L):
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Wind velocity:
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Temperature (°C):
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Oxygen saturation %:
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Current Direction:
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Sechhi disk (m):
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Salinity:
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Current Velocity:
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Nutrient information:
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Temperature Range During Event:
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Max: 32.5 °C, Min: 19.42 °C
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Salinity Range During Event:
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Max: 39.17, Min: 19.6 |
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Bloom location in the water column:
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Whole column
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Growth:
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In situ
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Growth Comments
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Epiphyte, so these estimates in water not true reflections of biomass on macroalgae and sea grass
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Additional Environmental information:
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